Fig. 1From: Relationship between internet research data of oral neoplasms and public health programs in the European UnionEvolution of RSV over time (2004–2018) for search terms in the countries included. The linear regression curves have the equation: lip cancer (y = 0.0074x + 11.007; R2 = 0.0112), tongue cancer (y = 0.0223x + 15.012; R2 = 0.1011), cancer gums (y = 0.0109x + 11.362; R2 = 0.0127) and oral cancer (y = 0.0225x + 12.795; R2 = 0.08Back to article page